Core Aeration for Centipedegrass: Timing, Equipment, and Benefits

When to Aerate

Early summer during rapid growth. On compacted soils, twice yearly is fine. Fertilize and water after for quick recovery.

Why Aerate?

Pokes holes for water, oxygen, nutrient penetration → deeper roots → better drought/disease resistance.

Best Equipment & Technique

• Core (hollow-tine) aerator pulls plugs—best.
• Spike aerators: little benefit.
• Criss-cross pattern; ensure 12+ holes/sq ft.
• Let plugs dry 3–4 days, then drag carpet to break up.

Clay Soil Reality

Southern clay packs hard. Aeration is the practical solution—no full lawn renovation needed.

Research-Backed Benefits

UGA study: core aeration increased deep rooting and water extraction by 25%; spike aeration no effect. Plugs also decompose thatch naturally.

Common Questions

Collect plugs? No—let dissolve or break up after drying.
Spike vs. core? Spikes compact soil and glaze holes; cores are superior.
Aerate after crabgrass preventer? No effect—MSU research confirms pre-emergent still works.